Taenia saginata
Taenia saginata is a large tapeworm that causes an infection called taeniasis. It is commonly known as the beef tapeworm or cattle tapeworm because it uses cows as intermediate hosts. Humans are the only definitive hosts. Taeniasis occurs worldwide and is relatively common in Africa, Eastern Europe, Latin America and the Philippines.
The video above explains more about the worm.
digestive system
It does not have a digestive system: no mouth, no anus, or digestive tract. It is also an acoelmate, meaning that it does not have a body cavity. Nutrition is obtained by absorption across the tapeworm’s flat body membrane. Carbohydrates from the host are the most important for T. saginata to absorb, especially in the form of polysaccharides. This form is easiest for the worm to breakdown into the usable form of glucose.